app/static/css/style.css

/* Style pour la page des matières */
.page-title {
  text-align: center;
  margin: 2rem 0 3rem;
  font-size: 2.5rem;
  color: #2c3e50;
  position: relative;
}

.page-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: #3498db;
  border-radius: 2px;
}

.subjects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  padding: 1rem;
}

.subject-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  position: relative;
}

.subject-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(52, 152, 219, 0.2);
}

.subject-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  position: relative;
  z-index: 1;
}

.subject-link::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #46a1dd 0%, #2980b9 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.subject-link:hover {
  color: white;
}

.subject-link:hover::after {
  opacity: 1;
}

.subject-name {
  font-size: 1.2rem;
  font-weight: 600;
  transition: color 0.3s ease;
}

.subject-arrow {
  font-size: 1.5rem;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.subject-link:hover .subject-arrow {
  opacity: 1;
  transform: translateX(0);
}

.no-subjects {
  text-align: center;
  color: #95a5a6;
  font-size: 1.2rem;
  padding: 2rem;
  grid-column: 1 / -1;
}

/* Animation d'apparition */
@keyframes cardEntrance {
  from {
      opacity: 0;
      transform: translateY(20px);
  }
  to {
      opacity: 1;
      transform: translateY(0);
  }
}

.subject-card {
  animation: cardEntrance 0.6s ease forwards;
  animation-delay: calc(var(--index) * 0.1s);
}

@media (max-width: 768px) {
  .subjects-grid {
      grid-template-columns: 1fr;
  }
  
  .subject-link {
      padding: 1rem;
  }
}


/* Page matière */
.subject-container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.subject-header {
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.subject-title {
  font-size: 2.5rem;
  color: #2c3e50;
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
}

.subject-header-decoration {
  height: 4px;
  width: 80px;
  background: #3498db;
  margin: 0 auto;
  border-radius: 2px;
  position: relative;
  animation: headerLine 1s ease-out;
}

.subcategories-section {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.section-title {
  color: #4a5568;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e2e8f0;
}

.subcategories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.subcategory-card {
  background: white;
  border-radius: 8px;
  padding: 1.5rem;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
}

.subcategory-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 15px rgba(52, 152, 219, 0.15);
  border-color: #3498db;
}

.subcategory-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.subcategory-name {
  color: #2c3e50;
  font-weight: 500;
  font-size: 1.1rem;
  transition: color 0.3s ease;
}

.arrow-icon {
  width: 24px;
  height: 24px;
  opacity: 0;
  transform: translateX(-10px);
  transition: all 0.3s ease;
  color: #3498db;
}

.subcategory-card:hover .arrow-icon {
  opacity: 1;
  transform: translateX(0);
}

.no-subcategories {
  text-align: center;
  padding: 3rem;
  grid-column: 1 / -1;
}

.empty-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 1rem;
  color: #cbd5e0;
}

.no-subcategories p {
  color: #a0aec0;
  font-size: 1.1rem;
}

/* Animations */
@keyframes headerLine {
  from { width: 0; opacity: 0; }
  to { width: 80px; opacity: 1; }
}

@media (max-width: 768px) {
  .subject-container {
      padding: 0;
  }
  
  .subcategories-section {
      padding: 1.5rem;
  }
  
  .subject-title {
      font-size: 2rem;
  }
}


/*sous catégorie*/ 
/* Page textes */
.content-container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.header-section {
  text-align: center;
  margin-bottom: 3rem;
}

.main-title {
  font-size: 2.3rem;
  color: #2c3e50;
  margin-bottom: 0.5rem;
}

.title-underline {
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, #46a1dd 0%, #2980b9 100%);
  margin: 0 auto;
  border-radius: 2px;
}

.texts-section {
  background: #fff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
}

.section-subtitle {
  color: #4a5568;
  font-size: 1.4rem;
  margin-bottom: 2rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid #edf2f7;
}

.texts-grid {
  display: grid;
  gap: 1.2rem;
}

.text-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  background: #fff;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  position: relative;
}

.text-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.15);
  border-color: #3498db;
}

.text-title {
  color: #2c3e50;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.text-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
  color: #718096;
}

.meta-item i {
  margin-right: 0.4rem;
  color: #3498db;
}

.card-arrow {
  color: #3498db;
  opacity: 0;
}

/* le texte, cours*/ 

/* Page texte */
.text-container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.text-header {
  text-align: center;
  margin-bottom: 3rem;
}

.text-title {
  font-size: 2.4rem;
  color: #2c3e50;
  margin-bottom: 1rem;
  line-height: 1.3;
  background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-meta {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  color: #718096;
  font-size: 0.95rem;
}

.meta-item i {
  margin-right: 0.5rem;
  color: #3498db;
}

.texte-contenu {
 content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #46a1dd 0%, #2980b9 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  animation: fadeIn 0.6s ease-out;
}

/* Styles de contenu riche */
.texte-contenu h2,
.texte-contenu h3 {
  color: #2c3e50;
  margin: 2rem 0 1rem;
}

.texte-contenu h2 {
  font-size: 1.6rem;
  border-bottom: 2px solid #e2e8f0;
  padding-bottom: 0.5rem;
}

.texte-contenu h3 {
  font-size: 1.4rem;
}

.texte-contenu p {
  margin-bottom: 1.5rem;
}

.texte-contenu img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.texte-contenu ul,
.texte-contenu ol {
  margin: 1.5rem 0;
  padding-left: 2rem;
}

.texte-contenu li {
  margin-bottom: 0.8rem;
}

.texte-contenu blockquote {
  border-left: 4px solid #3498db;
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  background: #f8f9fa;
  border-radius: 0 6px 6px 0;
}

/* additif */

/* Header */
.main-navbar {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  padding: 0.8rem 1rem;
  position: relative;
  z-index: 1000;
}

.navbar-brand {
  font-weight: 700;
  color: #2c3e50 !important;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.navbar-brand:hover {
  transform: translateX(5px);
}

.navbar-brand::after {
  content: "";
  display: inline-block;
  width: 2px;
  height: 24px;
  background: #3498db;
  margin-left: 1rem;
  transform: skew(-15deg);
}

.nav-link {
  color: #4a5568 !important;
  font-weight: 500;
  padding: 0.5rem 1.2rem !important;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nav-link:hover {
  color: #3498db !important;
  background: rgba(52, 152, 219, 0.08);
}

.nav-link.admin-link {
  background: rgba(52, 152, 219, 0.1);
  margin-left: 1rem;
}

.nav-link.admin-link:hover {
  background: rgba(52, 152, 219, 0.2);
}

.nav-link.admin-link::before {
  content: "\f023";
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  margin-right: 0.5rem;
}

/* Footer */
.main-footer {
  background: #2c3e50;
  color: #ecf0f1;
  padding: 2rem 0;
  margin-top: auto;
  border-top: 3px solid #3498db;
}

.main-footer .social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.main-footer .social-links a {
  color: #bdc3c7;
  font-size: 1.4rem;
  transition: all 0.3s ease;
}

.main-footer .social-links a:hover {
  color: #3498db;
  transform: translateY(-3px);
}

.main-footer .copyright {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-brand {
      font-size: 1.2rem;
  }
  
  .nav-link {
      padding: 0.5rem !important;
  }
  
  .main-footer {
      padding: 1.5rem 0;
  }
}
 .copyright {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 1rem;
  text-align: center;
}

.text-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.8rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #6c757d;
}